The pattern begins with a 5 chain ring joined in the first stitch with a slip stitch and then doing 10 single crochets in the ring. You only use half of the single crochets going from side to side instead of around the ring. The pattern graduates in size as you crochet using increase stitches as you work. This method of crochet is called mitered crochet. You will find that working until you have 30 single crochets makes a nice size dishcloth. You can make a small blanket by continuing to add increase rows.
It is an easy pattern to follow and can be found on Crochetspot.com website. You can search for Crochet Pattern: Ribbed Mitered Square Tawashi. It has been posted on crochetspot.com by Claire Ortega.